Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3
2103 posts

Uber Geek
+1 received by user: 525


  Reply # 1423907 9-Nov-2015 17:36
2 people support this post
Send private message

"Mate, You're dreaming!"

13 posts

Geek
+1 received by user: 1


  Reply # 1424460 10-Nov-2015 15:35
Send private message

ermm am i reading this right, for cable, hrmm if so shweet im stuck without ufb for like another 3 years yet they did it across the road only 60 meters from my house, evil enable networks

1624 posts

Uber Geek
+1 received by user: 332

Trusted
Subscriber

  Reply # 1424462 10-Nov-2015 15:41
Send private message

dualznz: ermm am i reading this right, for cable, hrmm if so shweet im stuck without ufb for like another 3 years yet they did it across the road only 60 meters from my house, evil enable networks


That's the claim. DOCSIS3.1 for the former telstraclear network, which could support up to 1gbps down and 100mbps up. 

No prices or timetable, and you will almost certainly need new cable modems. But it's still a big deal for Voda to put this into public - if they don't do it, they'll look silly (bit like announcing 5G then saying 'Yea Nah we're going to take an MVNO from Spark instead').






________
AK

 

 

 

Click to see full size


I iz your trusted friend
5779 posts

Uber Geek
+1 received by user: 137

Mod Emeritus
Trusted
Lifetime subscriber

  Reply # 1424505 10-Nov-2015 16:27
Send private message

antoniosk: ... almost certainly need new cable modems...


Yeah... about those...




Internet is my backyard...

 

«Geekzone blog: Tech 'n Chips Takeaway» «Personal blog: And then...»

 

Please read the Geekzone's FUG

 


2606 posts

Uber Geek
+1 received by user: 359

Trusted

  Reply # 1424511 10-Nov-2015 16:42
Send private message

Looks like they are working with Huawei for the upgrade

7664 posts

Uber Geek
+1 received by user: 2519

Subscriber

  Reply # 1424530 10-Nov-2015 16:58
Send private message

DjShadow: Looks like they are working with Huawei for the upgrade


but that could be just the core network hardware, not the end user stuff, we dont know the details on that yet

4851 posts

Uber Geek
+1 received by user: 91

Trusted

  Reply # 1424733 10-Nov-2015 21:22
One person supports this post
Send private message

According to the Chorus site, my area Khandallah gets UFB up to 200Mbs mid 2016. So I can compare that with the 1Gb that Vodafone is offering at the same time. The UFB probably won't be Vodafone of course.




System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen. Harman Kardon HK AVR 254 7.1 receiver, Samsung 4K player, Google Chromecast

 


My Google+ page 

 

 

 

https://plus.google.com/+laurencechiu

 

 


909 posts

Ultimate Geek
+1 received by user: 399

Trusted
Subscriber

  Reply # 1424734 10-Nov-2015 21:27
Send private message

lchiu7: According to the Chorus site, my area Khandallah gets UFB up to 200Mbs mid 2016. So I can compare that with the 1Gb that Vodafone is offering at the same time. The UFB probably won't be Vodafone of course.


If you can get cable then Vodafone won't sell you UFB, so more than 'probably' :)





203 posts

Master Geek
+1 received by user: 11

Trusted

  Reply # 1426064 11-Nov-2015 11:27
3 people support this post
Send private message

antoniosk:
dualznz: ermm am i reading this right, for cable, hrmm if so shweet im stuck without ufb for like another 3 years yet they did it across the road only 60 meters from my house, evil enable networks


That's the claim. DOCSIS3.1 for the former telstraclear network, which could support up to 1gbps down and 100mbps up. 

No prices or timetable, and you will almost certainly need new cable modems. But it's still a big deal for Voda to put this into public - if they don't do it, they'll look silly (bit like announcing 5G then saying 'Yea Nah we're going to take an MVNO from Spark instead').



DOCSIS 3.0 uses multiple, bonded channels, each about 6MHz wide. These channels are exactly (digital) TV channels. (The North American standard uses 6MHz channels. PAL uses 7 or 8. DOCSIS uses the 6MHz channel.)

DOCSIS 3.1 uses a different technology, borrowing OFDM from the mobile world. Basically, a lot of very much smaller frequency subcarriers (not channels) aggregated into very much wider DOCSIS 3.1 'channels' that can be up to 200MHz wide. (Although you might want to make them smaller and then bond them to avoid parts of the spectrum.)

Apart from anything else, OFDM is incredibly more noise immune.

Furthermore, the modulation technique has improved. DOCSIS 3.0 typically uses up to QAM 256 (8 bits per Hz) for 48Mbps (raw, before error correction) on a 6MHz channel. DOCSIS 3.1 can use QAM 4096 (12 bits per Hz) and even allows for QAM16384 (14 bits per Hz). Since that means reliably distinguishing 16k signal levels, it's pretty impressive technology. QAM4k is more achievable outside a lab (at the moment).

DOCSIS 3.1 also does better error correction.

Which all means:
Yes, you absolutely need new modems to do DOCSIS 3.1. This is not something that a firmware upgrade can fix.

57 posts

Master Geek
+1 received by user: 9


  Reply # 1426497 11-Nov-2015 19:56
Send private message

I definitely agree that DOCSIS 3.1 requires a new modem. 

And while I don't want to push the thread off topic...

michaeln: 
Apart from anything else, OFDM is incredibly more noise immune.


OFDM has the advantage of spectral efficiency (due to overlapping subcarriers) and resiliency to inter-symbol interference (as each data symbol is transmitted more slowly across the subcarriers). However, I have not come across any literature claiming that OFDM improves noise immunity... 

michaeln: 
Furthermore, the modulation technique has improved. DOCSIS 3.0 typically uses up to QAM 256 (8 bits per Hz) for 48Mbps (raw, before error correction) on a 6MHz channel. DOCSIS 3.1 can use QAM 4096 (12 bits per Hz) and even allows for QAM16384 (14 bits per Hz). Since that means reliably distinguishing 16k signal levels, it's pretty impressive technology. QAM4k is more achievable outside a lab (at the moment).


Don't mean to be pedantic, but QAM 256 = 8 bits/symbol, QAM16384 = 14 bits/symbol etc...

And yes, QAM16384 is completely mind-boggling, when in the wireless standards we go up to QAM256 (which is crazy in itself, given how much more noise is present in wireless devices). Amazing what you can do with cables!



191 posts

Master Geek
+1 received by user: 14


  Reply # 1426515 11-Nov-2015 20:27
Send private message

Found this press release issued on 12 Oct 2015  - http://www.prnewswire.com/news-releases/arris-unveils-next-generation-docsis-31-modems-300157703.html

 

"ARRIS's new DOCSIS 3.1 devices include a dedicated cable modem for operators and a retail cable modem:

 

     

  • Touchstone CM8200 – This ultra-fast DOCSIS 3.1 modem delivers unprecedented data rates of more than 5 Gbps downstream and 2 Gbps upstream. Switchable filters with full 204MHz upstream and 1218MHz downstream support reliable gigabit performance, while reducing interference in the home network.
  • SURFboard® SB8200 Cable Modem – This modem offers the same DOCSIS 3.1 performance and features as the CM8200, but is intended for retail customers, who can take advantage of its 32x8 QAM channel bonding capabilities on DOCSIS 3.0 cable systems."

1624 posts

Uber Geek
+1 received by user: 332

Trusted
Subscriber

  Reply # 1426551 11-Nov-2015 21:19
One person supports this post
Send private message

Skillie: Found this press release issued on 12 Oct 2015  - http://www.prnewswire.com/news-releases/arris-unveils-next-generation-docsis-31-modems-300157703.html

"ARRIS's new DOCSIS 3.1 devices include a dedicated cable modem for operators and a retail cable modem:

 

     

  • Touchstone CM8200 – This ultra-fast DOCSIS 3.1 modem delivers unprecedented data rates of more than 5 Gbps downstream and 2 Gbps upstream. Switchable filters with full 204MHz upstream and 1218MHz downstream support reliable gigabit performance, while reducing interference in the home network.
  • SURFboard® SB8200 Cable Modem – This modem offers the same DOCSIS 3.1 performance and features as the CM8200, but is intended for retail customers, who can take advantage of its 32x8 QAM channel bonding capabilities on DOCSIS 3.0 cable systems."


Motorola and Cisco appear to be out, and Technicolor is currently in until Huawei can do something better I guess. Getting QAM up to 4096 and 16384 is getting very fine... but at least unlike mobile the technology is running on a real physical shielded copper cable and not the wet noodle that is mobile :-)

Key point... new modems.

I presume t-box, v-box, x-box or whatever the new settop boxes (apple tv.....? that would be funny) are nicely isolated and won't need replacing.... mind you the way sky's content is going, TV OTT is the way to do it. Seriously don't use the settop box that much compared to freeview and VOD.




________
AK

 

 

 

Click to see full size


203 posts

Master Geek
+1 received by user: 11

Trusted

  Reply # 1426716 12-Nov-2015 08:40
Send private message

kaczor47: I definitely agree that DOCSIS 3.1 requires a new modem. 

And while I don't want to push the thread off topic...

michaeln: 
Apart from anything else, OFDM is incredibly more noise immune.


OFDM has the advantage of spectral efficiency (due to overlapping subcarriers) and resiliency to inter-symbol interference (as each data symbol is transmitted more slowly across the subcarriers). However, I have not come across any literature claiming that OFDM improves noise immunity... 


Most cable noise is in the form of interference, which tends also to be frequency specific. OFDM means that you lose some (all) bits for a while in just a a portion of your band.

kaczor47:
Don't mean to be pedantic, but QAM 256 = 8 bits/symbol, QAM16384 = 14 bits/symbol etc...

I think that's why it's called Geekzone laughing

In the context of explaining how MHz become bits/s on DOCSIS, I figured Hz was probably more informative.

What actually goes on as DOCSIS constantly negotiates power levels and modulations on the fly is even more mind boggling. laughing

26468 posts

Uber Geek
+1 received by user: 6021

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 1426722 12-Nov-2015 08:45
One person supports this post
Send private message

One presumes the ADB STB's will all have to be finally swapped out to free up spectrum before this can occur?



4044 posts

Uber Geek
+1 received by user: 2230

Lifetime subscriber

  Reply # 1433258 23-Nov-2015 13:07
Send private message

freitasm:
MikeB4: VF could use Geekzone members to trial the service


I doubt it. We did it with TelstraClear. Interesting I didn't get a press release or message regarding this, so there's always this.



Have there been any developments with this?




Sideface


1 | 2 | 3
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07


All or Nothing: New Zealand All Blacks arrives on Amazon Prime Video
Posted 2-Jun-2018 16:21


Innovation Grant, High Tech Awards and new USA office for Kiwi tech company SwipedOn
Posted 1-Jun-2018 20:54


Commerce Commission warns Apple for misleading consumers about their rights
Posted 30-May-2018 13:15


IBM leads Call for Code to use cloud, data, AI, blockchain for natural disaster relief
Posted 25-May-2018 14:12


New FUJIFILM X-T100 aims to do better job than smartphones
Posted 24-May-2018 20:17


Stuff takes 100% ownership of Stuff Fibre
Posted 24-May-2018 19:41



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.